Delamination in Fiber Metal Laminates (GLARE) during fatigue crack growth under variable amplitude loading

被引：63

作者：

Khan, S. U. ^{[1
]}

Alderliesten, R. C. ^{[1
]}

Benedictus, R. ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Aerosp Engn, Struct Integr Grp, NL-2600 GB Delft, Netherlands

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2011年 / 33卷 / 09期

关键词：

Fatigue crack growth; Damage tolerance; Delamination; Fibre Metal Laminates; Digital image correlation; LIFE PREDICTION; BEHAVIOR; OVERLOAD; PROPAGATION; PARAMETERS; STRENGTH; CLOSURE; DAMAGE; MODEL;

D O I：

10.1016/j.ijfatigue.2011.04.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a study on the influence that load variations have on delamination shapes in Fibre Metal Laminates. Previously fatigue tested centre-crack tension specimens have been chemically etched to obtain the final delamination shapes. In addition, fatigue crack growth tests on similar specimens have been performed to investigate the formation of delamination shapes. For this purpose, digital image correlation has been used as strain measurement technique to record the delamination shapes in situ testing. An explanation is put-forward in order to understand the effects of variable amplitude loading on the formation of delamination shapes. A transition in delamination shapes was observed, but evaluating this observation using an analytical fatigue crack growth prediction model including the observed change in delamination shapes revealed no significant effect on subsequent crack growth. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1292 / 1303

页数：12

共 38 条

[1] Analytical prediction model for fatigue crack propagation and delamination growth in Glare [J].